RawTherapee

RawTherapee is a cross-platform raw image processing program. RawTherapee involves the concept of non-destructive editing, similar to that of some other raw conversion software. Adjustments made by th...
Language(s): C++ gtkmm
Operating system(s): Linux, FreeBSD, Windows, Mac OS X
License: GPLv3 (as of version 3.0 alpha 1), proprietary (up to version 2.4.1)

Ring

Ring is a free and universal communication platform which preserves the users' privacy and freedoms. Ring is free software for universal communication which respects the freedoms and privacy of its us...
Language(s): C, C++
Operating system(s): Linux, FreeBSD, Microsoft Windows, OS X, Android
License: GNU General Public License v3

SageMath

SageMath is a free open-source mathematics software system licensed under the GPL. It builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and ma...
Language(s): Python
Operating system(s): Linux, Mac OS, Windows, Solaris, Android, iOS
License: GPLv3

Scikit-Learn

Simple and efficient tools for data mining and data analysis. Accessible to everybody, and reusable in various contexts. Built on NumPy, SciPy, and matplotlib. Features include: Classification, Regres...
Language(s): Python
Operating system(s): Linux, Mac OS, Windows
License: BSD license

Scilab

Scilab is free and open source software for numerical computation providing a powerful computing environment for engineering and scientific applications. Scilab is released as open source under the Ce...
Language(s): Scilab, C, C++, Java, Fortran
Operating system(s): BSD, FreeBSD, Linux, Mac OS, Windows
License: GPLv2